<script setup>
  import Sortable from 'sortablejs';
  import { onMounted, ref } from 'vue';
  import draggable from 'vuedraggable-es';
  const columns = ref([
    {
      name: 'name',
      required: true,
      label: 'Dessert (100g serving)',
      align: 'left',
      field: row => row.name,
      format: val => `${val}`,
      sortable: true,
    },
    {
      name: 'calories',
      align: 'center',
      label: 'Calories',
      field: 'calories',
      sortable: true,
    },
    { name: 'fat', label: 'Fat (g)', field: 'fat', sortable: true },
    { name: 'carbs', label: 'Carbs (g)', field: 'carbs' },
    { name: 'protein', label: 'Protein (g)', field: 'protein' },
    { name: 'sodium', label: 'Sodium (mg)', field: 'sodium' },
    {
      name: 'calcium',
      label: 'Calcium (%)',
      field: 'calcium',
      sortable: true,
      sort: (a, b) => parseInt(a, 10) - parseInt(b, 10),
    },
    {
      name: 'iron',
      label: 'Iron (%)',
      field: 'iron',
      sortable: true,
      sort: (a, b) => parseInt(a, 10) - parseInt(b, 10),
    },
  ]);

  const rows = ref([
    {
      name: 'Frozen Yogurt',
      calories: 159,
      fat: 6.0,
      carbs: 24,
      protein: 4.0,
      sodium: 87,
      calcium: '14%',
      iron: '1%',
    },
    {
      name: 'Ice cream sandwich',
      calories: 237,
      fat: 9.0,
      carbs: 37,
      protein: 4.3,
      sodium: 129,
      calcium: '8%',
      iron: '1%',
    },
    {
      name: 'Eclair',
      calories: 262,
      fat: 16.0,
      carbs: 23,
      protein: 6.0,
      sodium: 337,
      calcium: '6%',
      iron: '7%',
    },
    {
      name: 'Cupcake',
      calories: 305,
      fat: 3.7,
      carbs: 67,
      protein: 4.3,
      sodium: 413,
      calcium: '3%',
      iron: '8%',
    },
    {
      name: 'Gingerbread',
      calories: 356,
      fat: 16.0,
      carbs: 49,
      protein: 3.9,
      sodium: 327,
      calcium: '7%',
      iron: '16%',
    },
    {
      name: 'Jelly bean',
      calories: 375,
      fat: 0.0,
      carbs: 94,
      protein: 0.0,
      sodium: 50,
      calcium: '0%',
      iron: '0%',
    },
    {
      name: 'Lollipop',
      calories: 392,
      fat: 0.2,
      carbs: 98,
      protein: 0,
      sodium: 38,
      calcium: '0%',
      iron: '2%',
    },
    {
      name: 'Honeycomb',
      calories: 408,
      fat: 3.2,
      carbs: 87,
      protein: 6.5,
      sodium: 562,
      calcium: '0%',
      iron: '45%',
    },
    {
      name: 'Donut',
      calories: 452,
      fat: 25.0,
      carbs: 51,
      protein: 4.9,
      sodium: 326,
      calcium: '2%',
      iron: '22%',
    },
    {
      name: 'KitKat',
      calories: 518,
      fat: 26.0,
      carbs: 65,
      protein: 7,
      sodium: 54,
      calcium: '12%',
      iron: '6%',
    },
  ]);
  const list = ref([
    { name: 'Alpha', id: 0 },
    { name: 'Beta', id: 1 },
    { name: 'Cyn', id: 2 },
  ]);
  const sortRef = ref(null);
  onMounted(() => {
    const el = sortRef.value; // document.getElementById('sort');
    Sortable.create(el, {
      onEnd(evt) {
        const { oldIndex, newIndex } = evt;
        // console.log('evt', evt);
        // console.log('oldIndex,', oldIndex);
        // console.log('newIndex,', newIndex);
        var itemEl = evt.item; // dragged HTMLElement
        evt.to; // target list
        evt.from; // previous list
        evt.oldIndex; // element's old index within old parent
        evt.newIndex; // element's new index within new parent
        evt.oldDraggableIndex; // element's old index within old parent, only counting draggable elements
        evt.newDraggableIndex; // element's new index within new parent, only counting draggable elements
        evt.clone; // the clone element
        evt.pullMode; // when item is in another sortable: `"clone"` if cloning, `true` if moving
      },
    });
  });
</script>
<template>
  <ul id="sort" ref="sortRef">
    <li v-for="(item, index) of list" :key="item.id">
      {{ index }}-{{ item.name }}
    </li>
  </ul>
  <div class="q-pa-md">
    <draggable
      v-model="list"
      group="people"
      @start="drag = true"
      @end="drag = false"
      item-key="id"
    >
      <template #item="{ element }">
        <div>
          <div v-text="element.name"></div>
        </div>
      </template>
    </draggable>
  </div>
</template>

<style lang="scss" scoped>
  .ghost {
    opacity: 0.5;
    background: #c8ebfb;
  }
  .item {
    &:nth-child(1) {
      background: pink;
    }
    &:nth-child(2) {
      background: gold;
    }
  }
</style>
